Conde Nast Media Group announced today the following updates regarding New York Fashion Week's most star-studded event:

* Mary J. Blige joins the line up

* The Fashion Rocks(TM) stage will explode with once in a lifetime duets featuring Mary J. Blige and Usher, Fergie and Ludacris and Alicia Keys with Santana.

* Presenters include: Jessica Alba, Mischa Barton, Teri Hatcher, LeAnn Rimes, Denis Leary, Sean "Diddy" Combs, 50 Cent, Sean Lennon, Irina Lazareanu, Tyra Banks, Emily Procter, Kimora Lee Simmons, Michael Kors, Francisco Costa, Tommy Hilfiger, and Max Azria.

* A portion of the proceeds from this year's Fashion Rocks(TM) will benefit Keep A Child Alive (KCA). KCA is the urgent response to the AIDS pandemic ravaging Africa and the developing world. KCA is dedicated to providing life-saving anti-retroviral treatment to children and their families with HIV/AIDS by directly engaging the global public in the fight against AIDS. KCA gives 100% of your dollar a day commitment to treatment. For further information go to keepachildalive.org.

The show, hosted by Entourage star Jeremy Piven, will include performances by Aerosmith, Alicia Keys, Avril Lavigne, Carrie Underwood, Chad Kroeger, Fergie, Jennifer Hudson, Jennifer Lopez, Ludacris, Maroon 5, Mary J. Blige, Martina McBride, Santana and Usher.

The concert returns to the legendary Radio City Music Hall on September 6 and will air the following night, Friday, September 7, in a two-hour special on CBS (9:00-11:00 PM, ET/PT).